FREQUENCY MULTIPLIER MODULES
 SSFDFMM-TTL-XXX
Space Saver
FAST TTL Logic Digital Frequency Multiplier Module
- T²L input and output
- Output wavetrain synchronized with input square wave
- 8-pin Space Saver package
- Available in frequencies from 2 MHz to 100 MHz
- 10 Schottky T²L fan-out capacity
- Leads - thru-hole, J, Gull Wing or Tucked
DESIGN NOTES
The "Space Saver
Series" Digital Frequency Multiplier Modules developed by
Engineered Components Company have been designed to provide
precise T²L
square wave outputs at selected clock frequencies which
are synchronized by square wave inputs at sub-harmonic frequencies.
These units can be synchronized by any sub-harmonic frequency;
if no synchronizing input is present, the unit will free-run,
providing a square wave output within ±2% of the
desired frequency. Temperature coefficient of this free
running frequency is less than ±500 ppm/°C. Like
all frequency multipliers, either digital or sinusoidal,
the amount of phase jitter in the output will increase as
higher orders of multiplication are used; although this
effect is small, lower orders of multiplication should be
considered in those applications where these slight time
variations are important.
The SSFDFMM-TTL is offered in 38 standard clock frequencies
from 2 MHz to 100 MHz. When tested under the "Test Conditions"
shown, output frequency is maintained to within ±.005%
of the nearest multiple input frequency. These modules are
capable of driving 10 Schottky T²L
loads.
These Digital Frequency Multiplier Modules are of hybrid
construction utilizing the proven technologies of active
integrated circuitry and of passive networks utilizing capacitive,
inductive and resistive elements. The MTBF on these modules,
when calculated per MIL-HDBK-217 for a 50° C ground
fixed environment, is in excess of 2 million hours.
These "Space Saver Series" modules are packaged in an 8-pin
housing, molded of flame-proof Diallyl Phthalate per ASTM
D 5948, Type SDG-F, and are fully encapsulated in epoxy
resin. Thru-hole, J, Gull Wing or Tucked Lead configurations
are available on these modules (see Part Number Table note
to specify). Leads meet the solderability requirements of
MIL-STD-202, Method 208. Corner standoffs on the housing
of the thru-hole lead version and lead design of the surface
mount versions provide positive standoff from the printed
circuit board to permit solder-fillet formation and flush
cleaning of solder-flux residues for improved reliability.
Marking consists of manufacturer's name, logo (EC²),
part number, terminal identification and date code of manufacture.
All marking is applied by silk screen process using white
epoxy paint in accordance with MIL-STD-130, to meet the
permanency of identification required by MIL-STD-202, Method
215.
TEST CONDITIONS
1. All measurements are made at 25°C.
2. Vcc supply voltage is maintained at 5.0V DC.
3. All units are tested using a Schottky toggle-type input pulse and one Schottky T²L load at the output.
4. Input is T²L Schottky square wave at 20% of output frequency.
OPERATING SPECIFICATIONS
Vcc supply voltage: .............. 4.75 to 5.25V DC
Vcc supply current:
SSFDFMM-TTL-2 ............... 30mA typical
SSFDFMM-TTL-100 ............. 60mA typical
(Current increases with operating frequency)
Logic 1 Input:
Voltage ..................... 2V min.; Vcc max.
Current ..................... 2.7V = 40uA max.
@ max Vin = 200uA max.
Logic 0 Input:
Voltage ..................... 0.8V max.
Current ..................... -.4mA max.
Logic 1 Voltage out: ............. 2.5V min.
Logic 0 Voltage out: ............. 0.5V max.
Operating temperature range: ..... 0 to +70°C
Storage temperature: ............. -55 to +125°C
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PART NUMBER
TABLE
Suffix Part Number with G (for Gull Wing Lead), J (for J
Lead), F (for Thru-hole Lead) or T (for Tucked Lead).
Examples:
SSFDFMM-TTL-10G (Gull Wing), SSFDFMM-TTL-25J (J Lead), SSFDFMM-TTL-70F
(Thru-hole Lead) or SSFDFMM-TTL-12T (Tucked Lead)
| PART
NUMBER |
OUTPUT FREQUENCY |
SSFDFMM-TTL-2
SSFDFMM-TTL-3
SSFDFMM-TTL-4
SSFDFMM-TTL-5
SSFDFMM-TTL-6
SSFDFMM-TTL-7
SSFDFMM-TTL-8
SSFDFMM-TTL-9
SSFDFMM-TTL-10
SSFDFMM-TTL-11
SSFDFMM-TTL-12
SSFDFMM-TTL-13
SSFDFMM-TTL-14
SSFDFMM-TTL-15
SSFDFMM-TTL-16
SSFDFMM-TTL-17
SSFDFMM-TTL-18
SSFDFMM-TTL-19
SSFDFMM-TTL-20
SSFDFMM-TTL-22
SSFDFMM-TTL-24
SSFDFMM-TTL-25
SSFDFMM-TTL-26
SSFDFMM-TTL-28
SSFDFMM-TTL-30
SSFDFMM-TTL-32
SSFDFMM-TTL-34
SSFDFMM-TTL-35
SSFDFMM-TTL-36
SSFDFMM-TTL-38
SSFDFMM-TTL-40
SSFDFMM-TTL-45
SSFDFMM-TTL-50
SSFDFMM-TTL-60
SSFDFMM-TTL-70
SSFDFMM-TTL-80
SSFDFMM-TTL-90
SSFDFMM-TTL-100 |
|
2
MHz
3 MHz
4 MHz
5 MHz
6 MHz
7 MHz
8 MHz
9 MHz
10 MHz
11 MHz
12 MHz
13 MHz
14 MHz
15 MHz
16 MHz
17 MHz
18 Mhz
19 MHz
20 MHz
22 MHz
24 MHz
25 MHz
26 MHz
28 MHz
30 MHz
32 MHz
34 MHz
35 MHz
36 MHz
38 MHz
40 MHz
45 MHz
50 MHz
60 MHz
70 MHz
80 MHz
90 MHz
100 MHz |
Special modules can be readily manufactured to provide customer specified output frequencies for specific applications.
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